Multi-step reaction with 8 steps
1.1: 18-crown-6 ether; potassium tert-butylate / tetrahydrofuran; dimethyl sulfoxide / 0.25 h / 20 °C
1.2: 20 h / 125 °C
2.1: N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) / tetrachloromethane / 16 h / Reflux
3.1: sodium azide / dimethyl sulfoxide / 25 °C
4.1: water; triphenylphosphine / tetrahydrofuran / 16 h / 25 °C
5.1: tetrakis(triphenylphosphine) palladium(0) / N,N-dimethyl-formamide / 0.5 h / 160 °C / Inert atmosphere; Microwave irradiation
6.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 25 - 50 °C
7.1: potassium hydroxide / palladium diacetate / diethyl ether; dichloromethane; water / 1 h / 0 °C
8.1: trifluoroacetic acid / dichloromethane / 25 °C
With
N-Bromosuccinimide; sodium azide; 18-crown-6 ether; 2,2'-azobis(isobutyronitrile); potassium tert-butylate; water; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; triphenylphosphine; trifluoroacetic acid; potassium hydroxide;
tetrakis(triphenylphosphine) palladium(0); palladium diacetate;
In
tetrahydrofuran; tetrachloromethane; diethyl ether; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide;